Bump adodb/adodb-php from 5.20.14 to 5.20.15 (#1584)

Bumps [adodb/adodb-php](https://github.com/ADOdb/ADOdb) from 5.20.14 to 5.20.15.
- [Release notes](https://github.com/ADOdb/ADOdb/releases)
- [Changelog](https://github.com/ADOdb/ADOdb/blob/master/docs/changelog.md)
- [Commits](ADOdb/ADOdb@v5.20.14...v5.20.15)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Fixes #26388